Accrued expenses are costs incurred in a period but not yet invoiced, recognised through a journal entry so the period reflects the true cost.
Accrued expenses are costs that a business has already consumed in an accounting period but for which no supplier invoice has yet been received. Under accrual accounting the expense belongs to the period in which the goods or services were used, not the period in which the paperwork arrives, so the amount is estimated and posted as a liability at the period end. The largest single category in most companies is goods received not invoiced, where inventory or services have been delivered against a purchase order that has not yet been billed.
Without accruals a period shows an artificially low cost and an artificially high margin, and the missing expense then lands in the following month, distorting that one too. The effect compounds where volumes are lumpy: a warehouse that receives heavily in the last week of a quarter can carry a material unbilled position, and if it is not booked the quarterly result is wrong by that amount. Accruals are also a control, since the goods received not invoiced balance is a direct list of purchase orders where receipt and invoice have not met, which is exactly where duplicate payments and missed credit memos hide.
Business Central handles part of this automatically for items. When expected cost posting to the general ledger is enabled in inventory setup, posting a purchase receipt books the expected cost to interim accounts, the inventory account (interim) from inventory posting setup and the inventory accrual account (interim) from general posting setup, and those entries unwind when the purchase invoice is posted. The unbilled position is also visible in the quantity received not invoiced on purchase order lines. What is not automatic is everything that is not an item: purchase lines of type G/L account or resource, plus utilities, subscriptions, professional fees and any cost with no purchase order at all, have to be accrued manually, typically with a recurring general journal using a reversing method so the entry unwinds on the first day of the next period.
At a 31 December close, the warehouse received 40,000 CHF of raw material on 27 December against an open purchase order, with the invoice arriving on 8 January. A consulting engagement worth 12,000 CHF was delivered in December and will be billed in January, and electricity for December is estimated at 3,500 CHF. The item receipt is already carried in the interim accounts if expected cost posting is on, so the manual accrual is 12,000 plus 3,500, that is 15,500 CHF, posted on 31 December against accrued expenses and reversed on 1 January. Total unbilled cost recognised in December is 40,000 plus 15,500, that is 55,500 CHF.
The classic failure is double counting: the accrual is posted, the invoice arrives in the new period, and the reversal was never scheduled, so the cost lands twice. Reversing journals and a documented reversal date are the standard defence. The second is an ageing goods received not invoiced balance, where receipts from months ago sit unmatched because the order was over received, closed short or invoiced under a different vendor; most finance teams review that balance by age every month and treat anything older than sixty days as a process defect rather than a timing difference.
An accrual covers a cost that is certain in nature and close to certain in amount, with only the invoice missing. A provision covers an obligation whose amount or timing is genuinely uncertain and requires an estimate of the outcome itself.
It is a subset. Goods received not invoiced is the unbilled position arising from purchase order receipts, while accrued expenses also include costs with no purchase order at all, such as utilities or professional fees.
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